<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>文本修饰</title>
    <style>
        div {
        font-size: 50px; 
        text-decoration: overline  dashed  skyblue ;
        }
    </style>
</head>
<body>
    <div>你好，你好，你好！</div>
</body>
</html>